E1SDA18-25.000M TR

Crystals Overview

The E1SDA18-25.000M TR is a quartz crystal resonator manufactured by Ecliptek, designed for surface-mount applications. It features an HC49/UP Short package with a metal resistance weld seal and a maximum height of 3.2mm. The component operates at a nominal frequency of 25.000MHz using AT-Cut fundamental mode. Key electrical specifications include a load capacitance of 18pF, a parallel resonant configuration, and a maximum equivalent series resistance (ESR) of 40 Ohms. Frequency tolerance is ±30ppm at 25°C and ±50ppm over the operating range of 0°C to +70°C. Aging is limited to a maximum of 5ppm per year. The device supports a drive level of up to 1mWatt and functions within a storage temperature range of -40°C to +125°C.

Crystals Feature Summary

• Surface-mount construction utilizing an HC49/UP Short package with a metal resistance weld seal for environmental protection.

Crystals Applications

• General-purpose electronic circuits requiring stable 25MHz timing references
• Microcontroller clock generation in consumer electronics
• Industrial control systems operating within standard commercial temperature ranges

Crystals Procurement Notes

Verify that the specific order matches the E1SDA18-25.000M TR designation to ensure correct load capacitance and tolerance levels. Confirm compliance requirements such as RoHS status if applicable to your manufacturing process. Check datasheet revisions for any updates to mechanical dimensions or testing standards before finalizing procurement documentation.

Crystals Selection Notes

Select this component when a robust SMD crystal with a 25MHz frequency and ±30ppm stability is required. Ensure the circuit design accommodates the 18pF load capacitance and 40 Ohm maximum ESR. Verify that the operating environment stays within the 0°C to +70°C range for guaranteed frequency stability. Consider the HC49/UP Short footprint for PCB layout compatibility.

Crystals Part Context

This part belongs to the E1S series of quartz crystal resonators from Ecliptek. It is specifically engineered for surface-mount technology, offering a compact alternative to through-hole variants while maintaining reliability through its welded seal construction. The series provides various load capacitance options to suit different oscillator circuit designs.

Crystals Replacement Considerations

Direct substitutes must match the 25MHz frequency, 18pF load capacitance, and HC49/UP Short package dimensions. Verify that alternative components meet the same ±30ppm tolerance and aging specifications. Ensure the replacement maintains the parallel resonant mode and compatible ESR limits for circuit stability.